Panasonic CZ-256ESMC3 Technical Data Manual

Also see for CZ-256ESMC3: Quick reference Operating instructions

ー 141 ーOperating Instructions Intelligent Controller190Appendix AppendixConnections with external signalsYou can measure the gas and electricity consumed by the unit and control all of the units by input oroutputting signals to and from external equipments.Refer to the installation instructions for details about the electronics for external signals.Pulse meter inputYou can measure the gas and electricity consumed by connecting a pulse meter (gas and/or fuel flow meter, electricity meter).OperationA count is made for each pulse.You will need to set the consumption units (m 3 , kWh, or litres) per pulse in “Pulse meter settings” (P.158).Batch stop inputYou can automatically stop all connected units with an external signal (a fire alarm, for example). (Excluding those indoor units set to beexcluded from the operation.)OperationWhen input is ON, the stop signal is sent to all indoor units.Notey If batch stop input and batch startup input are ON simultaneously, on the batch stop input is valid.Batch startup inputYou can automatically startup all units with an external signal. (Excluding those indoor units set to be excluded from the operation.)OperationWhen the input signal switches from OFF to ON, the startup signal is sent to all indoor units.Batch alarm outputWhen an alarm or error occurs on any of the connected units, this unit sends a signal externally. This signal can be used by an alarm monitor orsimilar device.OperationWhen an alarm or error occurs on any of the connected units, the intelligent controller signal to the external device is shorted. When the systemis restored, the intelligent controller signal is opened.Batch startup outputWhen any of the connected units are running, this unit sends a signal externally.OperationWhen any of the connected units (including interface adaptors) are running, the intelligent controller signal to the external device is shorted.When all connected units are stopped, the intelligent controller signal is opened. (Including when alarms or errors are occurring)191Appendix AppendixMethodology for calculating distributionsThis unit is able to make simplified calculations of air conditioning distribution and energy (electricity andgas) usage with the cumulative operating time (thermostat ON/thermostat OFF) of indoor units and theperformance values of indoor units.Calculations for time distributionCalculate the electricity/gas consumption index for indoor units individually or as a part of a distribution group, and calculate the electricity/gasconsumption distribution ratios for indoor units individually or as a part of an area group.Types of parameters used to calculate distributionsThe following parameters are used for calculating time distributing.Parameter ExplanationRHHi The cumulative operating time of indoor unit No. i* (high)RHi The cumulative operating time of indoor unit No. i* (mid)RLi The cumulative operating time of indoor unit No. i* (low)SHHi The cumulative thermostat on time of indoor unit No. i* (high)SHi The cumulative thermostat on time of indoor unit No. i* (mid)SLi The cumulative thermostat on time of indoor unit No. i* (low)Pi The performance of indoor unit No. i* (a value equivalent to kW)k Weighting coefficient for electricity when the thermostat is ON and when it is OFFαHH Weighting coefficient for fan speed when the speed is highαH Weighting coefficient for fan speed when the speed is midαL Weighting coefficient for fan speed when the speed is low* Cumulative operating time is equal to thermostat ON cumulative time PLUS thermostat OFF cumulative timeIf the distribution modes (P.160) is set to “Time”, do not allocate PAC and GHP to the same distribution groups.